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-rw-r--r--app/lib/admin/metrics/dimension.rb15
-rw-r--r--app/lib/admin/metrics/dimension/base_dimension.rb31
-rw-r--r--app/lib/admin/metrics/dimension/languages_dimension.rb23
-rw-r--r--app/lib/admin/metrics/dimension/servers_dimension.rb23
-rw-r--r--app/lib/admin/metrics/dimension/software_versions_dimension.rb69
-rw-r--r--app/lib/admin/metrics/dimension/sources_dimension.rb23
-rw-r--r--app/lib/admin/metrics/dimension/space_usage_dimension.rb70
-rw-r--r--app/lib/admin/metrics/measure.rb15
-rw-r--r--app/lib/admin/metrics/measure/active_users_measure.rb33
-rw-r--r--app/lib/admin/metrics/measure/base_measure.rb46
-rw-r--r--app/lib/admin/metrics/measure/interactions_measure.rb33
-rw-r--r--app/lib/admin/metrics/measure/new_users_measure.rb35
-rw-r--r--app/lib/admin/metrics/measure/opened_reports_measure.rb35
-rw-r--r--app/lib/admin/metrics/measure/resolved_reports_measure.rb36
-rw-r--r--app/lib/admin/metrics/retention.rb67
15 files changed, 554 insertions, 0 deletions
diff --git a/app/lib/admin/metrics/dimension.rb b/app/lib/admin/metrics/dimension.rb
new file mode 100644
index 000000000..279539f68
--- /dev/null
+++ b/app/lib/admin/metrics/dimension.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension
+  DIMENSIONS = {
+    languages: Admin::Metrics::Dimension::LanguagesDimension,
+    sources: Admin::Metrics::Dimension::SourcesDimension,
+    servers: Admin::Metrics::Dimension::ServersDimension,
+    space_usage: Admin::Metrics::Dimension::SpaceUsageDimension,
+    software_versions: Admin::Metrics::Dimension::SoftwareVersionsDimension,
+  }.freeze
+
+  def self.retrieve(dimension_keys, start_at, end_at, limit)
+    Array(dimension_keys).map { |key| DIMENSIONS[key.to_sym]&.new(start_at, end_at, limit) }.compact
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/base_dimension.rb b/app/lib/admin/metrics/dimension/base_dimension.rb
new file mode 100644
index 000000000..8ed8d7683
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/base_dimension.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::BaseDimension
+  def initialize(start_at, end_at, limit)
+    @start_at = start_at&.to_datetime
+    @end_at   = end_at&.to_datetime
+    @limit    = limit&.to_i
+  end
+
+  def key
+    raise NotImplementedError
+  end
+
+  def data
+    raise NotImplementedError
+  end
+
+  def self.model_name
+    self.class.name
+  end
+
+  def read_attribute_for_serialization(key)
+    send(key) if respond_to?(key)
+  end
+
+  protected
+
+  def time_period
+    (@start_at...@end_at)
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/languages_dimension.rb b/app/lib/admin/metrics/dimension/languages_dimension.rb
new file mode 100644
index 000000000..2d0ac124e
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/languages_dimension.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::LanguagesDimension < Admin::Metrics::Dimension::BaseDimension
+  def key
+    'languages'
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT locale, count(*) AS value
+      FROM users
+      WHERE current_sign_in_at BETWEEN $1 AND $2
+        AND locale IS NOT NULL
+      GROUP BY locale
+      ORDER BY count(*) DESC
+      LIMIT $3
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at], [nil, @limit]])
+
+    rows.map { |row| { key: row['locale'], human_key: SettingsHelper::HUMAN_LOCALES[row['locale'].to_sym], value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/servers_dimension.rb b/app/lib/admin/metrics/dimension/servers_dimension.rb
new file mode 100644
index 000000000..3e80b6625
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/servers_dimension.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::ServersDimension < Admin::Metrics::Dimension::BaseDimension
+  def key
+    'servers'
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT accounts.domain, count(*) AS value
+      FROM statuses
+      INNER JOIN accounts ON accounts.id = statuses.account_id
+      WHERE statuses.id BETWEEN $1 AND $2
+      GROUP BY accounts.domain
+      ORDER BY count(*) DESC
+      LIMIT $3
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, Mastodon::Snowflake.id_at(@start_at)], [nil, Mastodon::Snowflake.id_at(@end_at)], [nil, @limit]])
+
+    rows.map { |row| { key: row['domain'] || Rails.configuration.x.local_domain, human_key: row['domain'] || Rails.configuration.x.local_domain, value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/software_versions_dimension.rb b/app/lib/admin/metrics/dimension/software_versions_dimension.rb
new file mode 100644
index 000000000..34917404d
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/software_versions_dimension.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::SoftwareVersionsDimension < Admin::Metrics::Dimension::BaseDimension
+  include Redisable
+
+  def key
+    'software_versions'
+  end
+
+  def data
+    [mastodon_version, ruby_version, postgresql_version, redis_version]
+  end
+
+  private
+
+  def mastodon_version
+    value = Mastodon::Version.to_s
+
+    {
+      key: 'mastodon',
+      human_key: 'Mastodon',
+      value: value,
+      human_value: value,
+    }
+  end
+
+  def ruby_version
+    value = "#{RUBY_VERSION}p#{RUBY_PATCHLEVEL}"
+
+    {
+      key: 'ruby',
+      human_key: 'Ruby',
+      value: value,
+      human_value: value,
+    }
+  end
+
+  def postgresql_version
+    value = ActiveRecord::Base.connection.execute('SELECT VERSION()').first['version'].match(/\A(?:PostgreSQL |)([^\s]+).*\z/)[1]
+
+    {
+      key: 'postgresql',
+      human_key: 'PostgreSQL',
+      value: value,
+      human_value: value,
+    }
+  end
+
+  def redis_version
+    value = redis_info['redis_version']
+
+    {
+      key: 'redis',
+      human_key: 'Redis',
+      value: value,
+      human_value: value,
+    }
+  end
+
+  def redis_info
+    @redis_info ||= begin
+      if redis.is_a?(Redis::Namespace)
+        redis.redis.info
+      else
+        redis.info
+      end
+    end
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/sources_dimension.rb b/app/lib/admin/metrics/dimension/sources_dimension.rb
new file mode 100644
index 000000000..a9f061809
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/sources_dimension.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::SourcesDimension < Admin::Metrics::Dimension::BaseDimension
+  def key
+    'sources'
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT oauth_applications.name, count(*) AS value
+      FROM users
+      LEFT JOIN oauth_applications ON oauth_applications.id = users.created_by_application_id
+      WHERE users.created_at BETWEEN $1 AND $2
+      GROUP BY oauth_applications.name
+      ORDER BY count(*) DESC
+      LIMIT $3
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at], [nil, @limit]])
+
+    rows.map { |row| { key: row['name'] || 'web', human_key: row['name'] || I18n.t('admin.dashboard.website'), value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/dimension/space_usage_dimension.rb b/app/lib/admin/metrics/dimension/space_usage_dimension.rb
new file mode 100644
index 000000000..aa00a2e18
--- /dev/null
+++ b/app/lib/admin/metrics/dimension/space_usage_dimension.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Dimension::SpaceUsageDimension < Admin::Metrics::Dimension::BaseDimension
+  include Redisable
+  include ActionView::Helpers::NumberHelper
+
+  def key
+    'space_usage'
+  end
+
+  def data
+    [postgresql_size, redis_size, media_size]
+  end
+
+  private
+
+  def postgresql_size
+    value = ActiveRecord::Base.connection.execute('SELECT pg_database_size(current_database())').first['pg_database_size']
+
+    {
+      key: 'postgresql',
+      human_key: 'PostgreSQL',
+      value: value.to_s,
+      unit: 'bytes',
+      human_value: number_to_human_size(value),
+    }
+  end
+
+  def redis_size
+    value = redis_info['used_memory']
+
+    {
+      key: 'redis',
+      human_key: 'Redis',
+      value: value.to_s,
+      unit: 'bytes',
+      human_value: number_to_human_size(value),
+    }
+  end
+
+  def media_size
+    value = [
+      MediaAttachment.sum(Arel.sql('COALESCE(file_file_size, 0) + COALESCE(thumbnail_file_size, 0)')),
+      CustomEmoji.sum(:image_file_size),
+      PreviewCard.sum(:image_file_size),
+      Account.sum(Arel.sql('COALESCE(avatar_file_size, 0) + COALESCE(header_file_size, 0)')),
+      Backup.sum(:dump_file_size),
+      Import.sum(:data_file_size),
+      SiteUpload.sum(:file_file_size),
+    ].sum
+
+    {
+      key: 'media',
+      human_key: I18n.t('admin.dashboard.media_storage'),
+      value: value.to_s,
+      unit: 'bytes',
+      human_value: number_to_human_size(value),
+    }
+  end
+
+  def redis_info
+    @redis_info ||= begin
+      if redis.is_a?(Redis::Namespace)
+        redis.redis.info
+      else
+        redis.info
+      end
+    end
+  end
+end
diff --git a/app/lib/admin/metrics/measure.rb b/app/lib/admin/metrics/measure.rb
new file mode 100644
index 000000000..5cebf0331
--- /dev/null
+++ b/app/lib/admin/metrics/measure.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure
+  MEASURES = {
+    active_users: Admin::Metrics::Measure::ActiveUsersMeasure,
+    new_users: Admin::Metrics::Measure::NewUsersMeasure,
+    interactions: Admin::Metrics::Measure::InteractionsMeasure,
+    opened_reports: Admin::Metrics::Measure::OpenedReportsMeasure,
+    resolved_reports: Admin::Metrics::Measure::ResolvedReportsMeasure,
+  }.freeze
+
+  def self.retrieve(measure_keys, start_at, end_at)
+    Array(measure_keys).map { |key| MEASURES[key.to_sym]&.new(start_at, end_at) }.compact
+  end
+end
diff --git a/app/lib/admin/metrics/measure/active_users_measure.rb b/app/lib/admin/metrics/measure/active_users_measure.rb
new file mode 100644
index 000000000..ac022eb9d
--- /dev/null
+++ b/app/lib/admin/metrics/measure/active_users_measure.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::ActiveUsersMeasure < Admin::Metrics::Measure::BaseMeasure
+  def key
+    'active_users'
+  end
+
+  def total
+    activity_tracker.sum(time_period.first, time_period.last)
+  end
+
+  def previous_total
+    activity_tracker.sum(previous_time_period.first, previous_time_period.last)
+  end
+
+  def data
+    activity_tracker.get(time_period.first, time_period.last).map { |date, value| { date: date.to_time(:utc).iso8601, value: value.to_s } }
+  end
+
+  protected
+
+  def activity_tracker
+    @activity_tracker ||= ActivityTracker.new('activity:logins', :unique)
+  end
+
+  def time_period
+    (@start_at.to_date...@end_at.to_date)
+  end
+
+  def previous_time_period
+    ((@start_at.to_date - length_of_period)...(@end_at.to_date - length_of_period))
+  end
+end
diff --git a/app/lib/admin/metrics/measure/base_measure.rb b/app/lib/admin/metrics/measure/base_measure.rb
new file mode 100644
index 000000000..4c336a69e
--- /dev/null
+++ b/app/lib/admin/metrics/measure/base_measure.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::BaseMeasure
+  def initialize(start_at, end_at)
+    @start_at = start_at&.to_datetime
+    @end_at   = end_at&.to_datetime
+  end
+
+  def key
+    raise NotImplementedError
+  end
+
+  def total
+    raise NotImplementedError
+  end
+
+  def previous_total
+    raise NotImplementedError
+  end
+
+  def data
+    raise NotImplementedError
+  end
+
+  def self.model_name
+    self.class.name
+  end
+
+  def read_attribute_for_serialization(key)
+    send(key) if respond_to?(key)
+  end
+
+  protected
+
+  def time_period
+    (@start_at...@end_at)
+  end
+
+  def previous_time_period
+    ((@start_at - length_of_period)...(@end_at - length_of_period))
+  end
+
+  def length_of_period
+    @length_of_period ||= @end_at - @start_at
+  end
+end
diff --git a/app/lib/admin/metrics/measure/interactions_measure.rb b/app/lib/admin/metrics/measure/interactions_measure.rb
new file mode 100644
index 000000000..9a4ef6d63
--- /dev/null
+++ b/app/lib/admin/metrics/measure/interactions_measure.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::InteractionsMeasure < Admin::Metrics::Measure::BaseMeasure
+  def key
+    'interactions'
+  end
+
+  def total
+    activity_tracker.sum(time_period.first, time_period.last)
+  end
+
+  def previous_total
+    activity_tracker.sum(previous_time_period.first, previous_time_period.last)
+  end
+
+  def data
+    activity_tracker.get(time_period.first, time_period.last).map { |date, value| { date: date.to_time(:utc).iso8601, value: value.to_s } }
+  end
+
+  protected
+
+  def activity_tracker
+    @activity_tracker ||= ActivityTracker.new('activity:interactions', :basic)
+  end
+
+  def time_period
+    (@start_at.to_date...@end_at.to_date)
+  end
+
+  def previous_time_period
+    ((@start_at.to_date - length_of_period)...(@end_at.to_date - length_of_period))
+  end
+end
diff --git a/app/lib/admin/metrics/measure/new_users_measure.rb b/app/lib/admin/metrics/measure/new_users_measure.rb
new file mode 100644
index 000000000..b31679ad3
--- /dev/null
+++ b/app/lib/admin/metrics/measure/new_users_measure.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::NewUsersMeasure < Admin::Metrics::Measure::BaseMeasure
+  def key
+    'new_users'
+  end
+
+  def total
+    User.where(created_at: time_period).count
+  end
+
+  def previous_total
+    User.where(created_at: previous_time_period).count
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT axis.*, (
+        WITH new_users AS (
+          SELECT users.id
+          FROM users
+          WHERE date_trunc('day', users.created_at)::date = axis.period
+        )
+        SELECT count(*) FROM new_users
+      ) AS value
+      FROM (
+        SELECT generate_series(date_trunc('day', $1::timestamp)::date, date_trunc('day', $2::timestamp)::date, interval '1 day') AS period
+      ) AS axis
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at]])
+
+    rows.map { |row| { date: row['period'], value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/measure/opened_reports_measure.rb b/app/lib/admin/metrics/measure/opened_reports_measure.rb
new file mode 100644
index 000000000..9acc2c33d
--- /dev/null
+++ b/app/lib/admin/metrics/measure/opened_reports_measure.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::OpenedReportsMeasure < Admin::Metrics::Measure::BaseMeasure
+  def key
+    'opened_reports'
+  end
+
+  def total
+    Report.where(created_at: time_period).count
+  end
+
+  def previous_total
+    Report.where(created_at: previous_time_period).count
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT axis.*, (
+        WITH new_reports AS (
+          SELECT reports.id
+          FROM reports
+          WHERE date_trunc('day', reports.created_at)::date = axis.period
+        )
+        SELECT count(*) FROM new_reports
+      ) AS value
+      FROM (
+        SELECT generate_series(date_trunc('day', $1::timestamp)::date, date_trunc('day', $2::timestamp)::date, interval '1 day') AS period
+      ) AS axis
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at]])
+
+    rows.map { |row| { date: row['period'], value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/measure/resolved_reports_measure.rb b/app/lib/admin/metrics/measure/resolved_reports_measure.rb
new file mode 100644
index 000000000..0dcecbbad
--- /dev/null
+++ b/app/lib/admin/metrics/measure/resolved_reports_measure.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Measure::ResolvedReportsMeasure < Admin::Metrics::Measure::BaseMeasure
+  def key
+    'resolved_reports'
+  end
+
+  def total
+    Report.resolved.where(updated_at: time_period).count
+  end
+
+  def previous_total
+    Report.resolved.where(updated_at: previous_time_period).count
+  end
+
+  def data
+    sql = <<-SQL.squish
+      SELECT axis.*, (
+        WITH resolved_reports AS (
+          SELECT reports.id
+          FROM reports
+          WHERE action_taken
+            AND date_trunc('day', reports.updated_at)::date = axis.period
+        )
+        SELECT count(*) FROM resolved_reports
+      ) AS value
+      FROM (
+        SELECT generate_series(date_trunc('day', $1::timestamp)::date, date_trunc('day', $2::timestamp)::date, interval '1 day') AS period
+      ) AS axis
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at]])
+
+    rows.map { |row| { date: row['period'], value: row['value'].to_s } }
+  end
+end
diff --git a/app/lib/admin/metrics/retention.rb b/app/lib/admin/metrics/retention.rb
new file mode 100644
index 000000000..49ab89129
--- /dev/null
+++ b/app/lib/admin/metrics/retention.rb
@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+class Admin::Metrics::Retention
+  class Cohort < ActiveModelSerializers::Model
+    attributes :period, :frequency, :data
+  end
+
+  class CohortData < ActiveModelSerializers::Model
+    attributes :date, :percent, :value
+  end
+
+  def initialize(start_at, end_at, frequency)
+    @start_at  = start_at&.to_date
+    @end_at    = end_at&.to_date
+    @frequency = %w(day month).include?(frequency) ? frequency : 'day'
+  end
+
+  def cohorts
+    sql = <<-SQL.squish
+      SELECT axis.*, (
+        WITH new_users AS (
+          SELECT users.id
+          FROM users
+          WHERE date_trunc($3, users.created_at)::date = axis.cohort_period
+        ),
+        retained_users AS (
+          SELECT users.id
+          FROM users
+          INNER JOIN new_users on new_users.id = users.id
+          WHERE date_trunc($3, users.current_sign_in_at) >= axis.retention_period
+        )
+        SELECT ARRAY[count(*), (count(*) + 1)::float / (SELECT count(*) + 1 FROM new_users)] AS retention_value_and_percent
+        FROM retained_users
+      )
+      FROM (
+        WITH cohort_periods AS (
+          SELECT generate_series(date_trunc($3, $1::timestamp)::date, date_trunc($3, $2::timestamp)::date, ('1 ' || $3)::interval) AS cohort_period
+        ),
+        retention_periods AS (
+          SELECT cohort_period AS retention_period FROM cohort_periods
+        )
+        SELECT *
+        FROM cohort_periods, retention_periods
+        WHERE retention_period >= cohort_period
+      ) as axis
+    SQL
+
+    rows = ActiveRecord::Base.connection.select_all(sql, nil, [[nil, @start_at], [nil, @end_at], [nil, @frequency]])
+
+    rows.each_with_object([]) do |row, arr|
+      current_cohort = arr.last
+
+      if current_cohort.nil? || current_cohort.period != row['cohort_period']
+        current_cohort = Cohort.new(period: row['cohort_period'], frequency: @frequency, data: [])
+        arr << current_cohort
+      end
+
+      value, percent = row['retention_value_and_percent'].delete('{}').split(',')
+
+      current_cohort.data << CohortData.new(
+        date: row['retention_period'],
+        percent: percent.to_f,
+        value: value.to_s
+      )
+    end
+  end
+end